发明名称 HEADPHONE DEVICE
摘要 <p>A headphone device where a back housing provided behind a driver unit of a headphone unit and a baffle section provided at a front face are formed from a porous material having air permeability. The headphone device is a device where a baffle section constructed so as to surround a space except a front opening of a driver unit and/or a back housing section constructed so as to cover the rear face of the driver unit are formed using a porous material having air permeability.</p>
申请公布号 WO2005101895(A1) 申请公布日期 2005.10.27
申请号 WO2005JP07579 申请日期 2005.04.14
申请人 SONY CORPORATION;TSUNODA, NAOTAKA 发明人 TSUNODA, NAOTAKA
分类号 H04R1/10;(IPC1-7):H04R1/10 主分类号 H04R1/10
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